Brief Articles
Copyright ©2010 Baishideng.
World J Gastrointest Endosc. Feb 16, 2010; 2(2): 69-74
Published online Feb 16, 2010. doi: 10.4253/wjge.v2.i2.69
Table 1 Clinicopathologic characteristic of esophageal SCNs
Number of lesions
En block resection rate100% (27/27)
Tumor-free lateral margin rate88.9% (24/27)
Tumor-free basal margin rate92.6% (25/27)
Tumor-free lateral/basal rate96.3% (26/27)
Mean tumor size [mean (SD)], mm (range) 21 ± 13 mm (2-55)
Mean specimen size [mean (SD)], mm (range)32 ± 12 mm (10-70)
Macroscopic typeIIa/IIb/IIc/IIc + IIb2/5/19/3
Preoperative determining depth of invasion of SCNsm1/m2/m3/sm1/sm27/15/2/2/1
Histologic depthDysplasia/m1/m2/m3/sm1/sm21/6/14/4/0/2
Vessel infiltration (+)2
Procedure time [mean (SD)], min88 ± 65 min
Local recurrence0
Complication (perforation)1
The mean hospital length of stay9 d
Balloon dilation (+)3
Table 2 Comparison of ESD under general anesthesia with that under intravenous anesthesia
General anesthesiaIntravenous anesthesiaP value
Mean tumor size (mm)26.915.1P < 0.05
Procedure time (min)9875NS
Complication (perforation)01NS
The mean hospital length of stay (day)9.68.4NS
Table 3 Comparison of ESD with flex knife and flash knife
Flex knifeFlush knifeP
Mean tumor size (mm)2023NS
Procedure time (min)78100NS
Complication (perforation)01NS
En block resection rate (%)100100NS